:root{color-scheme:light dark;font-family:Inter,Helvetica Neue,Arial,sans-serif;background:#f5f8fa;color:#15202b}body{margin:0;background:#f5f8fa}main{max-width:960px;margin:40px auto;padding:32px;background:#fff;border-radius:18px;box-shadow:0 20px 50px #0f46641f}h1{margin-top:0;margin-bottom:.5rem}p.description{color:#536471;margin-top:0;line-height:1.5}section{margin-top:24px}label{display:block;font-weight:600;margin-bottom:8px}.filters-grid{display:flex;flex-direction:column;gap:12px;margin-top:8px}.filters-grid label{display:flex;align-items:center;gap:10px;font-weight:500;margin-bottom:0}input[type=file],input[type=text]{width:100%;padding:12px;border-radius:12px;border:1px solid #d7e0e8;font-size:.95rem;box-sizing:border-box}input[type=range]{width:100%;margin-top:8px}button{display:inline-flex;align-items:center;gap:8px;background:#1d9bf0;border:none;color:#fff;padding:12px 20px;border-radius:999px;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .2s ease}button[disabled]{background:#9ec9f5;cursor:not-allowed}button:not([disabled]):hover{background:#1a8cd8}.button-row{margin-top:24px;display:flex;gap:12px;align-items:center}.progress{margin-top:16px;background:#e1e8ed;border-radius:999px;height:12px;position:relative;overflow:hidden}.progress span{display:block;height:100%;background:#1d9bf0;border-radius:999px}.status{margin-top:16px;color:#0f1419}.video-preview{margin-top:24px;display:flex;flex-direction:column;gap:12px}.video-preview video{width:320px;border-radius:16px;border:1px solid #d7e0e8}small.hint{display:block;color:#72808e;margin-top:6px}details{margin-top:16px;background:#f1f5f9;border-radius:12px;padding:12px 16px}details>summary{font-weight:600;cursor:pointer}ul.requirements{padding-left:1.2rem;color:#0f1419}